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150761 (2001 QA180)
Classification: Main-belt Asteroid          SPK-ID: 2150761
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .208983135399717 4.1044e-08  
a 2.625802467191868 1.3131e-08 au
q 2.077054034657799 1.0737e-07 au
i 15.79719555685547 4.6923e-06 deg
node 143.2895259812049 1.5178e-05 deg
peri 252.2619868571425 1.8256e-05 deg
M 159.5872253477912 1.0149e-05 deg
tp 2458511.550914268564
(2019-Jan-28.05091427)
4.192e-05 TDB
period 1554.144890499845
4.26
1.1658e-05
3.192e-08
d
yr
n .2316386343387949 1.7376e-09 deg/d
Q 3.174550899725938 1.5876e-08 au
  Orbit Determination Parameters
   # obs. used (total)      687  
   data-arc span      6848 days (18.75 yr)  
   first obs. used      2001-07-29  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55625  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 00:24:51  

Additional Information
 Earth MOID = 1.1402 au 
 Jupiter MOID = 2.47156 au 
 T_jup = 3.319 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.44   n/a E2021B55  
rotation period rot_per 20.1838 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.]

150761 (2001 QA180)          Discovered 2001-Aug-25 by NEAT at Palomar
Reference: 20070303/Numbers.arcLast Updated: 2007-03-07
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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